CVE-2013-0966

The Apple modhfsapple module for the Apache HTTP Server in Apple Mac OS X before 10.8.3 does not properly handle ignorable Unicode characters, which allows remote attackers to bypass intended directory authentication requirements via a crafted pathname in a URI...

CVE-2017-20190

Some Microsoft technologies as used in Windows 8 through 11 allow a temporary client-side performance degradation during processing of multiple Unicode combining characters, aka a "Zalgo text" attack. NOTE: third parties dispute whether the computational cost of interpreting Unicode data should b...

CVE-2019-12278

Opera through 53 on Android allows Address Bar Spoofing. Characters from several languages are displayed in Right-to-Left order, due to mishandling of several Unicode characters. The rendering mechanism, in conjunction with the "first strong character" concept, may improperly operate on a numeric...

CVE-2019-19817

The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader 12.0.0.112 has a CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0x2e8a Out-of-Bounds Read via crafted Unicode content...

CVE-2019-19819

The JBIG2Globals library in npdf.dll in Nitro Free PDF Reader 12.0.0.112 has a CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0x90ec NULL Pointer Dereference via crafted Unicode content...

CVE-2017-1001003

math.js before 3.17.0 had an issue where private properties such as a constructor could be replaced by using unicode characters when creating an object...

CVE-2019-19818

The JBIG2Decode library in npdf.dll in Nitro Free PDF Reader 12.0.0.112 has a CAPPDAnnotHandlerUtils::PDAnnotHandlerDestroyData2+0xa08a Out-of-Bounds Read via crafted Unicode content...

CVE-2019-15502

The TeamSpeak client before 3.3.2 allows remote servers to trigger a crash via the 0xe2 0x81 0xa8 0xe2 0x81 0xa7 byte sequence, aka Unicode characters U+2068 FIRST STRONG ISOLATE and U+2067 RIGHT-TO-LEFT ISOLATE...

CVE-2002-2186

Macromedia JRun 3.0, 3.1, and 4.0 allow remote attackers to view the source code of .JSP files via Unicode encoded character values in a URL...

CVE-2009-2705

CA SiteMinder allows remote attackers to bypass cross-site scripting XSS protections for J2EE applications via a request containing non-canonical, "overlong Unicode" in place of blacklisted characters...

SUSE CVE-2025-4516

There is an issue in CPython when using bytes.decode"unicodeescape", error="ignore|replace". If you are not using the "unicodeescape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode call in ...

AZL-61870 CVE-2025-4516 affecting package python3 for versions less than 3.12.9-2

There is an issue in CPython when using bytes.decode"unicodeescape", error="ignore|replace". If you are not using the "unicodeescape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode call in ...

DEBIAN-CVE-2025-4516

There is an issue in CPython when using bytes.decode"unicodeescape", error="ignore|replace". If you are not using the "unicodeescape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode call in ...

UBUNTU-CVE-2025-4516

There is an issue in CPython when using bytes.decode"unicodeescape", error="ignore|replace". If you are not using the "unicodeescape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode call in ...

Use After Free

Overview Affected versions of this package are vulnerable to Use After Free through the unicodeescape decoder when used with an error handler. An attacker can trigger a use-after-free condition by manipulating the memory after it has been freed. This is only exploitable if the unicodeescape...

CVE-2025-4516

CVE-2025-4516 describes a crash in CPython when using bytes.decode("unicode_escape", error=...) with the specific encoding and error handler. The connected Debian advisory (DLA-4445-1) notes this affects python3.9 and provides upgrade guidance (python3.9 3.9.2-1+deb11u4) with a patched package av...

CVE-2025-4516

There is an issue in CPython when using bytes.decode"unicodeescape", error="ignore|replace". If you are not using the "unicodeescape" encoding or an error handler your usage is not affected. To work-around this issue you may stop using the error= handler and instead wrap the bytes.decode call in ...

Malicious npm Package Leverages Unicode Steganography, Google Calendar as C2 Dropper

Cybersecurity researchers have discovered a malicious package named "os-info-checker-es6" that disguises itself as an operating system information utility to stealthily drop a next-stage payload onto compromised systems. "This campaign employs clever Unicode-based steganography to hide its initia...

Python 资源管理错误漏洞

Python is an open source, object-oriented programming language from the Python Foundation. The language is extensible, supports modules and packages, and supports multiple platforms. Python suffers from a resource management error vulnerability that stems from improper error handling when using...

PT-2025-21282

Name of the Vulnerable Software and Affected Versions: CPython affected versions not specified Description: The issue arises when using bytes.decode with the "unicode escape" encoding and an error handler set to "ignore" or "replace". Users not utilizing this specific encoding or error handler ar...